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Dulux: Application and Painting Techniques

Last Updated: May 27, 2014 11:20AM SGT
Painting a house or a building is often a very time-consuming and tiring process. However, you can make it a lot easier for yourself by following these simple application and painting techniques.

When to paint?
The temperature of your house affects the performance of paint. The wall temperature must be above 10°C throughout the painting process. You should generally avoid painting in extremely hot or cold conditions.
Choosing between enamels and acrylics for exterior use
Acrylics would generally be recommended for exterior use. As enamels age, they become brittle and chalky and therefore have a tendency to crack and flake off the surface. On the other hand, acrylics are able to retain their colour better, do not become brittle and chalk easily, giving a longer lasting, more durable paint finish.
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Taping the boundaries of painting with masking tapes will help to ensure you don’t accidentally paint out of the boundaries. However, you should take note to remove the masking tapes before the paint becomes too dry as removal later can lift and break the dry paint, leaving a cracked and jagged edge.
The painting sequence
Always work from top-down, this means beginning with the ceiling. Remember to paint away from the light source so you are not painting in shadow. Next, paint the walls, then the doors and windows, followed by the skirting and the trim.
Mixing is vital
Before applying paint; make sure you stir it well according to the instructions on the can. Always 'box' your paint; i.e.. if you are using more than one can, tip the contents of each into a larger container, like a large plastic bucket, and stir thoroughly. You can then pour it directly into your painting pot, or refill the original tins for future use.
Before use, moisten the brush in water if you are about to use a water-based paint, or turps if you are about to use an oil-based paint. Make sure you remove excess liquid before painting.

Fill the brush by dipping in up to half the length of the bristles. Tap it gently against the side of the can: don't wipe the brush hard against the lip. The bristles should flex only slightly as you brush - don't over press - let the paint flow from the brush.
If you are painting a large area by brush, apply paint to an area about 50 cm X 50 cm, then brush the paint in horizontal strokes to even the paint out and finish off with light vertical strokes all in one direction.
Never try to paint over an area that is partially dried, as the brush will leave marks in the surface. If you see a run in the wet paint, paint over it as soon as possible with light even strokes.
To use a roller you'll need a tray, frame, roller cover and possibly an extension pole. Make sure you have the right roller for the job. Generally speaking, 6-8mm nap covers are used for gloss and semi gloss paints, 10-12mm nap covers for low sheen and flat paints on walls and 20-32mm nap covers for most paints on rough surfaces like concrete or textured walls.
Fit the roller to the frame. Pour paint into the reservoir at the end of the roller tray. Do not overfill. Dip the roller lightly into the paint, then roll it gently backwards and forwards on the ramp to evenly distribute the paint on the roller cover.
Slowly roll the paint onto the surface in a series of close zig-zag strokes. When the paint starts to run, re-roll the area with parallel strokes to even the spread.

Never leave a paint-covered roller exposed to the air for any length of time. Wrap it in plastic cling wrap when you take a short break, and make sure to clean it completely after use.
Cleaning up
If you are planning to continue the work the next day, just keep the paint, brush and/or roller in the paint tray and cover with foil or cling wrap. The next morning, run the brush or roller over a newspaper a few times and it will be ready to use.

After the job is completed wash the rollers and brushes and paint tray with water for water-based paints or mineral turps for solvent-based paints. Do not use a spinning tool to clean brushes, as this will make your brush flare. Wrap the clean brushes and rollers with newspaper and secure with a rubber band. Store the brushes flat or hang them on hooks.

Now you are equipped with the right application and painting techniques. Have fun painting!

Source: Dulux

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